07-10-2014, 01:24 PM
Abstracts: Cryocooler word coming from Greek work “Kruos”. Which means icy cold and cooler is device which generates icy cold lower temperature. Cryocooler is device which is use to produce low temperature by compression and expansion of gas. In the last decade there has been increasing demand of Cryocooler for cooling of infrared sensors used in satellites and in tanks, missile, high temperature super conductor, medical and agriculture and biological sector etc. Types of Cryocooler most commonly used for achieve cryogenic temperature (150K) are in the Joule-Thomson, Brayton, Stirling, Gifford-McMahon, and pulse tube refrigerator. As more and more research and improvement made over last few year the pulse tube refrigerator has become a very competitive and reliable device for low temperature cooling then other types. As PTCC has no moving part in its cold section. It operates by a reciprocating compressor has the potential of achieving high reliability and lower vibration then other small refrigerators. There are different types of pulse tube refrigerators, such as basic pulse tube refrigerator, orifice pulse tube refrigerator, double inlet pulse tube refrigerator and inertance type pulse tube refrigerator as suggested by “kanao”. The performance of inertance configuration is better than single orifice and double inlet configuration. The concept and convenient pulse tube Cryocooler used for practical application are the inline type. The performance of inertance pulse tube refrigerator found as function of length and diameter of inertance tube and frequency. The performance also depends on regenerator material and configuration of regenerator matrix used in IPTR as well as pressure drop through regenerator. The regenerator is one of the most important components of PTR. To achieve better performance of regenerator to select proper regenerative materials. Normally phosphor, bronze, stainless steel, copper are used as regenerator materials to get low temperature. Main aim of this work is to achieve lowest temperature by using different regenerator material mesh size.